CHEM 26100 Lecture Notes - Lecture 1: Fide, Electronvolt, Eigenfunction
20 Oct 2018
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Sort of a hot body that emits energy in the form of electromagnetic radiation. 3000 c whitebody visible range glowing body short wavelengths. Total power energyhime a perfect emitter t absorber of radiation increases w temp. Wien"s first law wavelength far maximum emissive power. 2 f cat cannot be determined by thermo. Em thermal radiation in the form of standing wave. Showed that per unit wavelength the number the cavity must exist of waves per unit volume in n x a bit. E then average energy in the mode w wavelength x. 8,4 waves which act as a harmonic oscillator at frequency from the atoms in the walls of come the cavity. E ddp en igebede where p in a kt known as uvcatastrophe. Planck"s law 1900 keying of the black body are quantized energy levels of the oscillators on the walls. To satisfy wein"s 2nd law choose eo x tf x u.
